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Daily Email Health Checks: DNS and IP Monitoring

Business mail ends up in spam for an old reason. The sending IP got blocklisted and nobody noticed. MonMon prevents that with one repeated morning task. It checks every IP against 6 blocklists and scores each domain’s mail DNS. It alerts the moment something drifts.

What runs each morning

At 6 a.m. the system checks each sending IP against 6 blocklists. At the same time it scores each customer domain’s mail DNS on 5 items. The five are MX, SPF, DKIM, DMARC and PTR. All 5 is a 10.

Results go to the log. Anything below threshold shows as an alert on the on-duty staff screen.

Why MonMon is strict here

One listed IP drags down every domain sharing it. So MonMon keeps four rules. A new IP must be clean before serving customers. A new IP warms up for 2 to 4 weeks. Each mailbox sends at most 200 messages a day. No bulk marketing mail on shared infrastructure.

What you get

Mail from your domain ships with SPF, DKIM and DMARC in place on handover day. The monthly report lists messages sent, messages bounced and the DNS score. If a shared IP ever has a problem, MonMon reroutes. You hear about it before you notice.